IX Corps (United Kingdom)

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This article is about the United Kingdom Army unit. For other units of the same name, see IX Corps.
IX Corps
Active World War I and World War II
Country  United Kingdom
Branch Flag of the British Army.svg British Army
Type Corps

World War I

World War II

Frederick Stopford
Julian Byng
Alexander Hamilton-Gordon
Walter Braithwaite
John Crocker
Brian Horrocks

The British IX Corps was an army corps formation that existed during World War I and World War II.

World War I[edit]

The IX Corps was originally formed in England in 1915 in readiness to make a new landing at Suvla during the Battle of Gallipoli. Headquarters was formed at the Tower of London[1][2] Command of the corps was given to Lieutenant-General Sir Frederick Stopford.[1] His handling of the corps during the August Offensive warranted his replacement after only 9 days with Lieutenant-General Julian Byng.

During the Gallipoli campaign the corps comprised the following divisions:[3]

Following the British evacuation of Gallipoli, the corps was moved to France in 1916,[1] where it was commanded by Alexander Hamilton-Gordon until he was relieved in 1918.

After severe losses during the Battle of the Lys in April 1918 the corps was moved south to a quiet sector to reform. This sector was the unlucky target of the next German offensive, the Third Battle of the Aisne in May–June 1918, causing further losses to IX Corps. General Duchene, commander of the French Sixth Army, had deployed IX corps (five divisions) too far forward, on the Chemin des Dames ridge which had been gained at such cost in the Second Battle of the Aisne the previous year. (The French Commander-in-Chief Petain and the Army Group Commander Franchet d’Esperey would have preferred the ridge to be lightly held and the main defence to be a battle zone between it and the Rive Aisne).[5]

At the time of the Armistice the IX Corps was part of the Fourth Army.

World War II[edit]

IX Corps saw active service in Algeria and Tunisia during World War II as part of First Army. It was disbanded after the end of the Tunisia Campaign.[6]

General Officers Commanding[edit]

Commanders included:[2][7]



  • Maj A.F. Becke,History of the Great War: Order of Battle of Divisions, Part 4: The Army Council, GHQs, Armies, and Corps 1914–1918, London: HM Stationery Office, 1944/Uckfield: Naval & Military Press, 2007, ISBN 1-847347-43-6.
  • Cliff Lord & Graham Watson, Royal Corps of Signals: Unit Histories of the Corps (1920–2001) and its Antecedents, Solihull: Helion, 2003, ISBN 1-874622-92-2.
  • Harris, J.P. Douglas Haig and the First World War. Cambridge, Cambridge University Press, 2008. ISBN 978-0-521-89802-7

Online sources[edit]